Query automatically set parameters

[akloeker]

Is there a possibility to query the current values used by the camera, e.g. gain or exposure, if those are set to auto/continuous?
rosparam get only returns the parameters set at the start of the camera node, however I want to know what the actual camera settings are for each captured image.

[icolwell-as]

The functionality you describe doesn't exist in the driver at the moment, but I think it should be easy to add if you use the getFeatureValue() function and query the features you are interested in.